Results 101 to 110 of about 695 (133)
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The Distribution of Ankylosauridae, Hadrosauridae, and Ceratopsidae Dinosaurs Across Alberta
2021Hello! I am a WISEST Summer Research Program student, and I was placed in the Dino Lab. The Focus of my research project this summer was looking at the distribution of dinosaurs across Alberta - specifically three different families of herbivores. The maps in this project show a general distribution of where specimens have been found across Alberta ...
Emma Kozak +3 more
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The Anatomical Record, 2022
AbstractDespite the long history of research in the late Campanian Judith River Formation in northern Montana, most of the vertebrate fossils are represented by fragmentary remains, making precise taxonomic identifications difficult. Contrary to this, the partially contemporaneous Dinosaur Park Formation, Alberta, Canada is known for its tremendous ...
Ryuji Takasaki +8 more
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AbstractDespite the long history of research in the late Campanian Judith River Formation in northern Montana, most of the vertebrate fossils are represented by fragmentary remains, making precise taxonomic identifications difficult. Contrary to this, the partially contemporaneous Dinosaur Park Formation, Alberta, Canada is known for its tremendous ...
Ryuji Takasaki +8 more
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Evidence for the presence of nasal salt glands in the Hadrosauridae (Ornithischia)
Journal of Arid Environments, 1981The subcutaneous nasal glands of some Recent reptiles and birds, mainly secreting salts of sodium and potassium, are sometimes contained within depressions in the skull; they lie above or in front of the orbit. Similar preorbital or circumnarial depressions in the skull of certain ornithischian dinosaurs (Hadrosaurinae) and lateral chambers within the ...
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The Palatal Structure of some Canadian Hadrosauridae (Reptilia: Ornithischia)
Canadian Journal of Earth Sciences, 1972Two distinct hadrosaurian lineages can be delineated, each showing changes from possible hypsilophodont ancestors. The Hadrosaurinae are typified by moderately vaulted palates, broad pterygoid flanges, large anterior maxillary processes, and non-folded premaxillae, with direct narial passages.
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Acta Geologica Sinica - English Edition, 2011
Abstract:On the basis of the taphonomy, osteological anatomy and ontogenetic variation, Zhuchengosaurus maximus Zhao et al., 2007 is considered to be synonymic with Shantungosaurus giganteus Hu, 1973 herein. This paper also deals with the life behavior of S. giganteus and the environment in which S. giganteus lived. S.
JI Yannan +3 more
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Abstract:On the basis of the taphonomy, osteological anatomy and ontogenetic variation, Zhuchengosaurus maximus Zhao et al., 2007 is considered to be synonymic with Shantungosaurus giganteus Hu, 1973 herein. This paper also deals with the life behavior of S. giganteus and the environment in which S. giganteus lived. S.
JI Yannan +3 more
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The Palatal Structure of some Canadian Hadrosauridae (Reptilia: Ornithischia): Discussion
Canadian Journal of Earth Sciences, 1973phus osborni may be from the Cretaceous at Edmonton; nothing else can he deduced concerning the ages or localities for these four spccies and nothing at all for the other five species discussed. The abstract includes the statement "Two distinct hadrosaurian lineages can be delineated, each showing changes from possible hypsiIophodont ancestors ...
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The Palatal Structure of some Canadian Hadrosauridae (Reptilia: Ornithischia): Reply
Canadian Journal of Earth Sciences, 1973Two distinct hadrosaurian lineages can be delineated, each showing changes from possible hypsilophodont ancestors. The Hadrosaurinae are typified by moderately vaulted palates, broad pterygoid flanges, large anterior maxillary processes, and non-folded premaxillae, with direct narial passages.
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Duck-bill dinosaurs (Hadrosauridae, Ornithischia) from the North Slope of Alaska
Journal of Paleontology, 1987Hadrosaur Bones have been found on the Colville River north of Umiat on the North Slope of Alaska. This find represents the first report of dinosaur bones in Alaska and their northernmost reported occurrence. The remains are not determinable below family level but are important, nonetheless, for interpretations of the paleoclimatology and ...
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